USN-915-1: Thunderbird vulnerabilities

Several flaws were discovered in the JavaScript engine of Thunderbird. If a user had JavaScript enabled and were tricked into viewing malicious web content, a remote attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program...

USN-877-1: Firefox 3.0 and Xulrunner 1.9 regression

USN-873-1 fixed vulnerabilities in Firefox and Xulrunner. The upstream changes introduced a regression when using NTLM authentication. This update fixes the problem and adds additional stability fixes. We apologize for the inconvenience. Original advisory details: Jesse Ruderman, Josh Soref,...

USN-859-1: OpenJDK vulnerabilities

Dan Kaminsky discovered that SSL certificates signed with MD2 could be spoofed given enough time. As a result, an attacker could potentially create a malicious trusted certificate to impersonate another site. This update handles this issue by completely disabling MD2 for certificate validation in...

USN-781-1: Pidgin vulnerabilities

It was discovered that Pidgin did not properly handle certain malformed messages when sending a file using the XMPP protocol handler. If a user were tricked into sending a file, a remote attacker could send a specially crafted response and cause Pidgin to crash, or possibly execute arbitrary code...

USN-757-1: Ghostscript vulnerabilities

It was discovered that Ghostscript contained a buffer underflow in its CCITTFax decoding filter. If a user or automated system were tricked into opening a crafted PDF file, an attacker could cause a denial of service or execute arbitrary code with privileges of the user invoking the program...

USN-692-1: Gadu vulnerability

It was discovered that the Gadu library, used by some Instant Messaging clients, did not correctly verify certain packet sizes from the server. If a user connected to a malicious server, clients using Gadu could be made to crash, leading to a denial of service...

USN-577-1: Linux kernel vulnerability

Wojciech Purczynski discovered that the vmsplice system call did not properly perform verification of user-memory pointers. A local attacker could exploit this to overwrite arbitrary kernel memory and gain root privileges. CVE-2008-0600...

USN-197-1: Shorewall vulnerability

A firewall bypass vulnerability has been found in shorewall. If MACLISTTTL was set to a value greater than 0 or MACLISTDISPOSITION was set to "ACCEPT" in /etc/shorewall/shorewall.conf, and a client was positively identified through its MAC address, that client bypassed all other policies/rules in...

USN-184-1: umount vulnerability

David Watson discovered that "umount -r" removed some restrictive mount options like the "nosuid" flag. If /etc/fstab contains user-mountable removable devices which specify the "nosuid" flag which is common practice for such devices, a local attacker could exploit this to execute arbitrary...

USN-7467-1: libxml2 vulnerabilities

It was discovered that the libxml2 Python bindings incorrectly handled certain return values. An attacker could possibly use this issue to cause libxml2 to crash, resulting in a denial of service. CVE-2025-32414 It was discovered that libxml2 incorrectly handled certain memory operations. A remot...

USN-7435-1: Protocol Buffers vulnerability

It was discovered that Protocol Buffers incorrectly handled memory when receiving malicious input using the Java bindings. An attacker could possibly use this issue to cause a denial of service...

USN-6742-2: Linux kernel vulnerabilities

Daniele Antonioli discovered that the Secure Simple Pairing and Secure Connections pairing in the Bluetooth protocol could allow an unauthenticated user to complete authentication without pairing credentials. A physically proximate attacker placed between two Bluetooth devices could use this to...

USN-6305-2: PHP vulnerabilities

USN-6305-1 fixed several vulnerabilities in PHP. This update provides the corresponding update for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. Original advisory details: It was discovered that PHP incorrectly handled certain XML files. An attacker could possibly use this issue to...

USN-6598-1: Paramiko vulnerability

Fabian Bäumer, Marcus Brinkmann, Jörg Schwenk discovered that the SSH protocol was vulnerable to a prefix truncation attack. If a remote attacker was able to intercept SSH communications, extension negotiation messages could be truncated, possibly leading to certain algorithms and features being...

USN-6494-2: Linux kernel vulnerabilities

Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service system crash. CVE-2023-31085 Lucas Leong discovered that the netfilter subsystem in the...

USN-6482-1: Quagga vulnerabilities

It was discovered that Quagga incorrectly handled certain BGP messages. A remote attacker could possibly use this issue to cause Quagga to crash, resulting in a denial of service...

USN-6479-1: Linux kernel (OEM) vulnerabilities

Kyle Zeng discovered that the netfilter subsystem in the Linux kernel contained a race condition in IP set operations in certain situations. A local attacker could use this to cause a denial of service system crash. CVE-2023-42756 Alex Birnberg discovered that the netfilter subsystem in the Linux...

USN-6454-3: Linux kernel (ARM laptop) vulnerabilities

Kyle Zeng discovered that the netfilter subsystem in the Linux kernel contained a race condition in IP set operations in certain situations. A local attacker could use this to cause a denial of service system crash. CVE-2023-42756 Alex Birnberg discovered that the netfilter subsystem in the Linux...

USN-6438-2: .Net regressions

USN-6438-1 fixed vulnerabilities in .Net. It was discovered that the fix for CVE-2023-36799 was incomplete. This update fixes the problem. Original advisory details: Kevin Jones discovered that .NET did not properly process certain X.509 certificates. An attacker could possibly use this issue to...

USN-6347-1: Linux kernel (Azure CVM) vulnerabilities

William Zhao discovered that the Traffic Control TC subsystem in the Linux kernel did not properly handle network packet retransmission in certain situations. A local attacker could use this to cause a denial of service kernel deadlock. CVE-2022-4269 It was discovered that the NTFS file system...

USN-6299-1: poppler vulnerabilities

It was discovered that poppler incorrectly handled certain malformed PDF files. If a user or an automated system were tricked into opening a specially crafted PDF file, a remote attacker could possibly use this issue to cause a denial of service. CVE-2020-36023, CVE-2020-36024...

USN-6162-1: Linux kernel (Intel IoTG) vulnerabilities

Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrar...

USN-6084-1: Linux kernel vulnerabilities

Jordy Zomer and Alexandra Sandulescu discovered that the Linux kernel did not properly implement speculative execution barriers in usercopy functions in certain situations. A local attacker could use this to expose sensitive information kernel memory. CVE-2023-0459 Xingyuan Mo discovered that the...

USN-5924-1: Linux kernel (Azure) vulnerabilities

It was discovered that the Upper Level Protocol ULP subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execut...

USN-5881-1: Chromium vulnerabilities

It was discovered that Chromium did not properly manage memory. A remote attacker could possibly use these issues to cause a denial of service or execute arbitrary code via a crafted HTML page. CVE-2023-0471, CVE-2023-0472, CVE-2023-0473, CVE-2023-0696, CVE-2023-0698, CVE-2023-0699, CVE-2023-0702...

USN-5736-1: ImageMagick vulnerabilities

It was discovered that ImageMagick incorrectly handled certain values when processing PDF files. If a user or automated system using ImageMagick were tricked into opening a specially crafted PDF file, an attacker could exploit this to cause a denial of service. This issue only affected Ubuntu 14....

USN-5711-1: NTFS-3G vulnerability

Yuchen Zeng and Eduardo Vela discovered that NTFS-3G incorrectly validated certain NTFS metadata. A local attacker could possibly use this issue to gain privileges...

USN-5626-2: Bind vulnerabilities

USN-5626-1 fixed several vulnerabilities in Bind. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Yehuda Afek, Anat Bremler-Barr, and Shani Stajnrod discovered that Bind incorrectly handled large delegations. A remote attacker...

USN-5602-1: Linux kernel (Raspberry Pi) vulnerabilities

Asaf Modelevsky discovered that the IntelR 10GbE PCI Express ixgbe Ethernet driver for the Linux kernel performed insufficient control flow management. A local attacker could possibly use this to cause a denial of service. CVE-2021-33061 Moshe Kol, Amit Klein and Yossi Gilad discovered that the I...

USN-5447-1: logrotate vulnerability

It was discovered that logrotate incorrectly handled the state file. A local attacker could possibly use this issue to keep a lock on the state file and cause logrotate to stop working, leading to a denial of service...

USN-4961-2: pip vulnerability

USN-4961-1 fixed a vulnerability in pip. This update provides the corresponding updates for Ubuntu 14.04 ESM, Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. Original advisory details: It was discovered that pip incorrectly handled unicode separators in git references. A remote attacker could possibly use...

USN-5387-1: Barbican vulnerabilities

Douglas Mendizábal discovered that Barbican incorrectly handled access restrictions. An authenticated attacker could possibly use this issue to consume protected resources and possibly cause a denial of service. CVE-2022-23451, CVE-2022-23452...

USN-5195-1: Mumble vulnerability

It was discovered that the Mumble client supported websites for public servers with arbitrary URL schemes. If a user were tricked into visiting a malicious website from the public server list, a remote attacker could possibly execute arbitrary code...

USN-5168-1: NSS vulnerability

Tavis Ormandy discovered that NSS incorrectly handled verifying DSA/RSA-PSS signatures. A remote attacker could use this issue to cause NSS to crash, resulting in a denial of service, or possibly execute arbitrary code...

USN-4789-1: Apache ZooKeeper vulnerabilities

It was discovered that Apache ZooKeeper incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. CVE-2016-5017 It was discovered that Apache ZooKeeper incorrectly implemented "wchp/wchc" commands. An attacker could...

USN-4766-1: Apache Commons BeanUtils vulnerabilities

It was discovered that Apache Commons BeanUtils improperly handled certain input. An attacker could possibly use this vulnerability to cause a crash or execute arbitrary code...

USN-4649-1: xdg-utils vulnerability

Jens Mueller discovered that xdg-utils incorrectly handled certain URI. An attacker could possibly use this issue to expose sensitive information...

USN-4634-1: OpenLDAP vulnerabilities

It was discovered that OpenLDAP incorrectly handled certain malformed inputs. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service...

USN-4624-1: libexif vulnerability

It was discovered that libexif incorrectly handled certain inputs. An attacker could possibly use this issue to cause unexpected behaviours, or execute arbitrary code...

USN-4595-1: Grunt vulnerability

It was discovered that Grunt did not properly load yaml files. An attacker could possibly use this to execute arbitrary code. CVE-2020-7729...

USN-4541-1: Gnuplot vulnerabilities

Tim Blazytko, Cornelius Aschermann, Sergej Schumilo and Nils Bars discovered that Gnuplot did not properly validate string sizes in the dfgenerateasciiarrayentry function. An attacker could possibly use this issue to cause a heap buffer overflow, resulting in a denial of service attack or arbitra...

USN-4540-1: atftpd vulnerabilities

Denis Andzakovic discovered that atftpd incorrectly handled certain malformed packets. A remote attacker could send a specially crafted packet to cause atftpd to crash, resulting in a denial of service. CVE-2019-11365 Denis Andzakovic discovered that atftpd did not properly lock the thread list...

USN-4506-1: MCabber vulnerability

It was discovered that MCabber does not properly manage roster pushes. An attacker could possibly use this issue to remotely perform machine-in-the-middle attacks. CVE-2016-9928...

USN-4396-1: libexif vulnerabilities

It was discovered that libexif incorrectly handled certain inputs. An attacker could possibly use this issue to expose sensitive information. CVE-2020-0093, CVE-2020-0182 It was discovered that libexif incorrectly handled certain inputs. An attacker could possibly use this issue to cause a remote...

USN-4377-1: ca-certificates update

The ca-certificates package contained an expired CA certificate that caused connectivity issues. This update removes the "AddTrust External Root" CA. In addition, on Ubuntu 16.04 LTS and Ubuntu 18.04 LTS, this update refreshes the included certificates to those contained in the 20190110 package...

USN-4359-2: APT vulnerability

USN-4359-1 fixed a vulnerability in APT. This update provides the corresponding update for Ubuntu 12.04 ESM and 14.04 ESM. Original advisory details: It was discovered that APT incorrectly handled certain filenames during package installation. If an attacker could provide a specially crafted...

USN-4329-1: Git vulnerability

Felix Wilhelm discovered that Git incorrectly handled certain URLs that included newlines. A remote attacker could possibly use this issue to trick Git into returning credential information for a wrong host...

USN-4139-1: File Roller vulnerability

It was discovered that File Roller incorrectly handled certain TAR files. An attacker could possibly use this issue to overwrite sensitive files during extraction...

USN-3658-3: procps-ng vulnerabilities

USN-3658-1 fixed a vulnerability in procps-ng. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: It was discovered that the procps-ng top utility incorrectly read its configuration file from the current working directory. A local attacker could possibl...

USN-3698-1: Linux kernel vulnerabilities

It was discovered that the nested KVM implementation in the Linux kernel in some situations did not properly prevent second level guests from reading and writing the hardware CR8 register. A local attacker in a guest could use this to cause a denial of service system crash. CVE-2017-12154 Fan Wu,...